      function showLucky(root){
        var feed = root.feed;
        var entries = feed.entry || [];
        var entry = feed.entry[0];
        for (var j = 0; j < entry.link.length; ++j) {
          if (entry.link[j].rel == "alternate") {
            window.location = entry.link[j].href;
          }
        }
      }
      function fetchLuck(luck){
        script = document.createElement('script');
        script.src = '/feeds/posts/summary?start-index='+luck+'&max-results=1&alt=json-in-script&callback=showLucky';
        script.type = 'text/javascript';
        document.getElementsByTagName('head')[0].appendChild(script);
      }
      function readLucky(root){
        var feed = root.feed;
        var total = parseInt(feed.openSearch$totalResults.$t,10);
        var luckyNumber = Math.floor(Math.random()*total);
        luckyNumber++;
        fetchLuck(luckyNumber);
      }
      function browse(){
        var script = document.createElement('script');
        script.type = 'text/javascript';
        script.src = '/feeds/posts/summary?max-results=0&alt=json-in-script&callback=readLucky';
        document.getElementsByTagName('head')[0].appendChild(script);
      }
   